[None][fix] Fix python-only build that uses TRTLLM_USE_PRECOMPILED

[jiaganc]

Summary by CodeRabbit

• New Features

  • Allow specifying an exact precompiled wheel version (or a location) via configuration; falls back to the package version when unspecified.
  • More flexible handling of the precompiled flag (string-based) for easier configuration and CI use.
  • Improved wheel download command to run pip via the Python interpreter for greater reliability.

• Chores

  • Build requirements updated to require pip >= 24 for improved build compatibility.

Description

1. Downloading precompiled package requires pip module but it's not included in the build environment. Fixed by adding pip to the build requirement in pyproject.toml.
2. TRTLLM doc says it supports overriding the precompiled package version via TRTLLM_USE_PRECOMPILED but it's actually NOT implemented. This MR implement it.
3. Use == instead of = to specify the package version in pip.

Test Coverage

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[coderabbitai]

📝 Walkthrough

Walkthrough

Build config now requires pip >= 24 in pyproject.toml. setup.py updates precompiled wheel handling: environment-driven version selection, updated download_precompiled signature to accept version, and uses "python3 -m pip" to install an exact tensorrt_llm=={version}, treating precompiled flags as strings.

Changes

Cohort / File(s)	Summary of Changes
Build system requirements pyproject.toml	Added pip >= 24 to build-system.requires; build-backend unchanged.
Precompiled wheel logic and install invocation setup.py	download_precompiled signature changed to (workspace, version). TRTLLM_USE_PRECOMPILED handled as string (or None); introduced precompiled and precompiled_location vars; use_precompiled computed from string values; when needed computes version (use precompiled unless "1", else get_version()); installs via python3 -m pip install tensorrt_llm=={version} or from provided location.

Sequence Diagram(s)

sequenceDiagram
  participant Env as Environment (TRTLLM_USE_PRECOMPILED / PRECOMPILED_LOCATION)
  participant Setup as setup.py
  participant Pip as python3 -m pip

  Env->>Setup: read precompiled, precompiled_location
  Setup->>Setup: precompiled = str|None, precompiled_location = str|None
  Setup->>Setup: use_precompiled = (precompiled != None and precompiled != "0") or precompiled_location != None
  alt use_precompiled and no precompiled_location
    Setup->>Setup: version = (precompiled != "1") ? precompiled : get_version()
    Setup->>Pip: python3 -m pip install tensorrt_llm==version
  else use_precompiled with precompiled_location
    Setup->>Pip: python3 -m pip install <precompiled_location>
  end

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Estimated code review effort

🎯 2 (Simple) | ⏱️ ~8 minutes

Suggested reviewers

• chzblych
• EmmaQiaoCh
• niukuo

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📥 Commits

Reviewing files that changed from the base of the PR and between 8f205af and d16f485.

📒 Files selected for processing (1)

• setup.py (2 hunks)

🚧 Files skipped from review as they are similar to previous changes (1)

• setup.py

⏰ Context from checks skipped due to timeout of 90000ms. You can increase the timeout in your CodeRabbit configuration to a maximum of 15 minutes (900000ms). (1)

• GitHub Check: Pre-commit Check

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[jiaganc]

/bot run --skip-test

[tensorrt-cicd]

PR_Github #14955 [ run ] triggered by Bot

[tensorrt-cicd]

PR_Github #14955 [ run ] completed with state SUCCESS
/LLM/main/L0_MergeRequest_PR pipeline #11289 (Partly Tested) completed with status: 'SUCCESS'

[jiaganc]

/bot run --skip-test

[tensorrt-cicd]

PR_Github #15277 [ run ] triggered by Bot

[tensorrt-cicd]

PR_Github #15277 [ run ] completed with state SUCCESS
/LLM/main/L0_MergeRequest_PR pipeline #11533 (Partly Tested) completed with status: 'SUCCESS'

[jiaganc]

/bot skip --comment "Build stages passed. Precompiled build is only used in development, so skip tests to save CI resources."

[tensorrt-cicd]

PR_Github #15308 [ skip ] triggered by Bot

[tensorrt-cicd]

PR_Github #15308 [ skip ] completed with state SUCCESS
Skipping testing for commit 5f80ebd